Fettig



May 5, 1953 A. J. FE'rTlG AMOUNT ENTERING MEANS FOR ACCOUNTING MACHINES10 Sheets-Sheet l Filed March 24, 1950 INVENToR. ur J. IVe/7@ f/p/ A. J.FETTIG AMOUNT ENTERING MEANS FOR ACCOUNTING MACHINES May 5, 1953 l0Sheets-Sheet 2 Filed March 24, 1950 INVENT OR. e@

May 5, 1953 A. J. FETTIG 2,637,494

AMOUNT ENTERING MEANS FCR ACCOUNTING MACHINES Filed March 24, 1950 l0Sheets-81u29?I 3 N 47 49 IMU-Ti n Fig` 3.v 69 /nulllllllmm'mm 66SMII//f/f/I IN VEN TOR.

May 5, 1953 A. J. FETTIG 2,637,494

AMOUNT ENTERING MEANS FOR ACCOUNTING MACHINES Filed March 24, 1950 10Sheets-Sheet 4 1N VENTOR,

May 5, 1953 A. J. FETTIG AMOUNT ENTERING MEANS FOR I'ACCOUNTING MACHINESFiled March 24, 1950 May 5, 1953 A. J. FETTIG 2,637,494 AMOUNT ENTERINGMEANS FOR ACCOUNTINGiMACHINES Filed March 24, 195o 10 Sheets-Sheet 6INVENT OR.

A. J. FETTIG AMOUNT .ENTERING MEANS FOR ACCOUNTING MACHINES May 5, 195310 Sheets-Sheet '7 Filed March 24, 1950 May 5, '1953 A. J. FE'rTlG2,637,494 AMOUNT ENTERING MEANS FOR ACCOUNTING MACHINES Filed March 24,1950 l0 Sheets-Sheet 8 May 5, 1953 A. J. FETTIG 2,637,494

AMOUNT ENTERING MEANS FOR ACCOUNTING MACHINES Filed March 24, 1950 l0Sheets-Sheet 9 INVENTOR.

May 5, '1953 A. J. FETT|G 2,637,494

AMOUNT ENTERING MEANS FOR ACCOUNTING MACHINES Filed March 24, 1950 10Sheets-Sheet lO `aww( 350%! D 1 1949 N OLD BAL. CHECKS FEES DEPOSITSDATE NEW BALANCE Oct 31'49 200.00* 1. 200.00 11.00- .05- 2. 55.00- .30-I 3. .25- 35.00 Nov 1'49 168.40* 4. 168.40 .75- 174.55 Nov 449 342.20*5. 342.20 150.00- .15 6. Y 14.85- .05- 7. .25- 50.00 8. .25- 25.00 9.19.75- .05- Nov '1'49 231.85* 10. 231.85 35.00- 11. 10.00- .05- 12.50.00 36 13. 20.00 Nov 10 49 2 .80*

AIMA

@789| -RETUIRR RELEASE l f4/@M90 I s55-4739 I 1 I I l I l I l l I l Il 1. i u1u EER u1u FAR l I g I f e. R.R.x. summum EAR I I I-Z I -N I Is. I I i I UPPER BAR I l 4. I Lolxa'm I UPPER RAR.R.R.KY a uAIIN EAR I lI I I I l A I s. I wR'nR RRR. a mu ,um EAR I i e. I z LWEEBAR g I l l 7,l I ILowER BAR I I l I l B, l l l IIIN BAR I V 9. l e UPPER AR I j' I Ij I l I I 1o. I wurm IHoLn pow LOWER BAR I I i l 11, I l LOWE BAR V t II| 12. I I Ixion I owN LOWER BAR l 15, I I I :How Dow UPPER BAR I I j lI l I F I I INVENTOR F 14 YQ/maf J. ef/g ATTORNEYS Patented May 5, 1953AMOUNT ENTERING MEANS Foa ACCOUNTING MACHINES Arthur J. Fettig, GrossePointe Farms, Mich., as-

signor to Burroughs Adding Machine Company, Detroit, Mich., acorporation of Michigan Application March 24, 1950, Serial No. 151,641

7 Claims.

fMy present invention relates to improvements in amount entering meansfor accounting machines such as are used in posting accounts in whichsome or all oi the items posted require the entry of supplemental itemsof predetermined xed amounts. For example, banks commonly charge servicefees for checks drawn against accounts of certain classes and frequentlyalso charge service fees for at least some kinds Vof deposits made tosuch accounts. The fees charged for items of dilerent classes may alsobe of different amounts. Other examples are ob- Vious.

An object of the present invention is to. provide an accounting machinewith means for automatically entering such a supplemental item oi anydesired predetermined amount whenever the machine is operated to post anitem requiring the entry of such supplemental item.

A further object is to provide a means of the aforesaid character which,when the machine is Voperated to post items of diierent kinds requiringthe entry oi supplemental items of diierent predetermined amounts, willautomatically enter the supplemental items of the appropriatepredetermined amounts.

A further object is to provide a means of the aforesaid character havingprovisions for setting the amount or amounts .of the supplemental itemor items to any desired value or values in a given range.

A further object is to provide manually controllable means forsuppressing the automatic entry of the predetermined supplemental itemWhen desired.

A further object is to provide means for automatically suppressingautomatic entry of the supplemental item in an operation of the machinefollowing an operation in which no amount is entered.

A further object is to improve various control mechanisms of themachine, particularly the line-spacing, carriage movement and automaticoperation controls of the machine to facilitate most efncient use of thesupplemental itementering means.

Other objects and advantages of the invention will appear from thefollowing description one embodiment of the invention illustrated, byWay -of example, in the accompanying drawings in which:

Figure 1 is a right side elevation of a machine with the casing removedand With the right side frame member broken away and the certain Another parts omitted to more clearly illustrate the parts of the presentinvention;

Fig. 2 is a perspective view from the upper right front corner of themachine of the automatic supplemental item-entering means of the presentinvention;

Fig. 3 is a further perspective view of portions of the supplementalitem-entering means as viewed from the upper left rear corner;

Fig. 4 is afurther right side elevation of a portion of Fig. 1 on asomewhat larger scale and with further omission of parts to show certainparts more clearly;

Fig. 5 is a further right side elevation on a larger scale of certainother parts of Fig. 1

Fig. 6 is a perspective View on an enlarged scale of still further partsof Fig. 1 located at the lower right rear corner portion of the machine;

Figs. '7 and 8 are details of a portion of the automatic carriagecontrol of the supplemental item-entering means;

Fig. 9 is a further right side elevation, showing particularly portionsof the automatic cycling control mechanism of the machine;

Fig. l0 is a front elevation of portions of the carriage movementcontrol mechanism at the rear of the machine.;

Figs. 11 and 12 are details of parts appearing in Fig. 10;

Fig. 13 is a perspective View of portions of the line-spacing mechanism;and

Fig. 14 illustrates an example of work and shows schematically thearrangement of the control elements on the paper carriage to secure therequired automatic cycling of the machine and automatic fee selectionand entry and further shows diagrammatically the motor bar manipulationsby the machine operator to cause the machine to perform the operationsrequired .for the illustrated example of Work.

In the illustrated example, the invention is embodied in a BurroughsHigh Keyboard" type of accounting machine, the general structure ofwhich is well known and disclosed in many prior patents and need not bere-described herein. Various supplemental improvements which have beenmade in the machine for the purpose of securing the most advantageousutilization of the `principal new mechanism of the present inventionwill be described in detail hereinafter. The latter comprises thepresettable automatic supplemental item-entering means, hereinafterbriey named the fee-entering means," and its `various control means.

The automatic fee-entering means controls those orders of the machinesamount differential mechanism required for entering the supplementalitem (hereinafter called the fee) in selected cycles of operation of themachine when no amount is entered on the keyboard. In the Burroughs HighKeyboard machine, which has been selected for illustration, the amountkeys 20 for the digits from l to 8 control the amount differentialmechanism through stop wires 2| (Fig. 2) which have hook-shaped forwardends, the transverse portions of which are guided in slots 22 in pairsof guide plates 23. By depression of their respective keys 20, the stopwires 2| are pulled back to place their hooked forward ends in the pathsof forwardly projecting shoulders 24 on the upper ends of differentialactuator racks 25 which are located between the guide plates 23 andthrough which the amounts represented by the depressed keys 28 areentered into one or more totalizers and set up in a printing mechanism.For the actuator rack 24 in each order, there is a stop pawl 26 whichholds the actuator at its 0 position when no key in the correspondingorder is depressed but which, when the amount key for any digit from 1to 9 in the corresponding order is depressed, is moved in the usual wayby the latch slide 21 for the key row to release the actuator rack. Witha 9 key depressed, the actuator 25 is permitted to move through itsmaximum stroke at the end of which the forward shoulder 24 on its upperend limits against a cross shaft 28 supported at its ends in the sideframes of the machine. If any other key for the digits from l to 8 isdepressed, the actuator 25 is arrested by the associated stop wire 2|.

To permit the stop wires 2| in those orders -with which the fee-enteringmeans is associated tobe moved to their effective positions withoutdepression of their keys, each of those stop wires, instead of beinghooked directly in the usual bell crank 29 for its key 20, is hooked,instead, to the `lower end of a short arm 38 freely pivoted at its upperend on the shaft 3| on which the said bell crank is pivoted. The lowerend of the arm 30 land the stop wire 2| connected thereto are urged1forwardly to their normal positions by a tension spring 32 connected atits rear end to the lower end of the arm 30. The spring 32 normallyholds the farm 30 engaged against a stud'33 projecting ffrom the bellcrank 29. Thus the stop wire 2|,

will be pulled rearwardly to effective position through the parts 29, 33and 30 by depression of its key 20 and is also capable of movingrearwardly to effective position independently of depression of its key.

Presettable fee-entering 'means Two yoke members 34 and 35l (Fig. 3)have 'their cross-bars secured together by a pair of screws and bothhave rearwardly extending side arms3'l and 38 formed with semicircularnotches to embrace a cross shaft 39 (Figs. 1 and 2) supported at itsends in the side frames of the machine.

A collar 40 secured on the shaft 39 at the right hand side of the leftside arms of the yoke members 34 and 35,v and a second collar 4| ,alsosecured onv the shaft 39 and mentioned Aagain hereinafter, prevent theyokes 34 and 35 .from shifting lengthwise of the shaft 39. The ,upperyoke member 35 valso has a pair of forwardly and upwardly extending sidearms 42. An-

other yoke member 43 is pivotally supported on ,studs in y,theends ofthe arms 42. member 44 has two cross-bars integrally connect- A doubleyoke stop wire 2 ing two upwardly and downwardly extending side portionspivotally supported on studs in the rear ends of the side arms of theyoke member 43. Each side portion of the yoke member 44 hastwolongitudinally extending slots 45 and 46 above and below its supportingpivot studs to permit 0 stop releasing members 4| and stop-wire settingmembers 50 to be secured adjustably to said side portions in variouspositions thereon by means of headed screws and nuts. Each of the 0 stopreleasing members 41 has an offset rearwardly extending 0 stop engagingprojection 48 or 49 and each of the stop-wire setting members 50 has arearwardly extending stop-wire engaging projection 5| or 52. In theorders with which the fee-entering means is associated, the 0 stop pawls26 (Fig. 2) have downward arms with forwardly projecting ends 53 to beengaged by the projections 48 or 49 to rock the pawls to releasingposition.

n As will be described in detail hereinafter, means are provided forrocking the yoke member 43 to raise and lower the double yoke member 44to select fees of different amounts and means are also provided forrockng the yoke 35 to move the double yoke member 44 rearwardly towardthe "0 stops and stop wires 2| to cause entry of the selected fee andthen forwardly again to normal position at appropriate times in theoperations of the machine. The illustrated fee-entering means cooperateswith the 0 stop pawls 26 and stop wires 2| of only the two lowest ordersof the amount differential mechanisms and is adapted for fees ranging to99 cents but it i's obvious that it may be provided with parts tocooperate with the 0 stops and stopwires of other orders to provide forfees of greater amounts. Also, in the illustrated machine, the means forrocking the yoke 43 is operated so that the member 44 is given only twodifferent vertical positions providing for fees of only two differentamounts. The two vertically displaced positions of the member 44 areseparated by a distance equal to only a small fraction of the spacingbetween adjacent stop wires 2| of the same order and it is obvious thatprovisions may be made for moving the member 44 to more than twodifferent vertically spaced positions to provide for more than twodifferent fees. It will be noticed that the projections 49 and 52 (Fig3) are of greater width than the projections 48 and 5| so that theprojection 49 is aligned with the .0 stop projection 53 and theprojection 52 will be aligned with the same stop wire 2| in twodifferent vertical positions of the member 44 whereas each of theprojections 48 and 5| will be aligned with a 0 stop projection 53 andwith a respectively, in only one vertical position of the member 44.

When the member 44 is moved rearwardly the "0 stop pawls 26 and stopwires 2| of the orders with which the fee-entering device is associatedare set to cause the desired pre-selected fee to be entered. If, in anysuch order, the 04 stop pawl 26 is not rocked to releasing position by aIpawl 28 and a stop wire 2| for the same order are moved rearwardly byprojections`48 or 49 and v5| or 52, the actuator 25 for that order willmove down to the position determined by the set stop wire 2|. In suchrearward movement of the stop wires 2| by projections 5I or 52, theconnected arms 30 are rocked rearwardly without affecting the associatedbell cranks 29 and keys 20 bers 4'! and 50 are secured in such positionson the side portions of the yoke that as the member 44 is moved to itsupper rearward effective position in the early part of a cycle ofoperation of the machine as hereinafter described, the lower portion ofthe rear end of the projection 49 will act on the projection of theunits order stop 26 to rock that stop to releasing position and thelower portion of the rear end of the projection 52 will move the unitsorder "5 stop Wire 2| rearwardly into position to limit the excursion ofthe units order actuator 25 but the projection 48 will pass idly abovethe projection 53 of the tens order "0 stop 26, and the projection 5|will pass idly over the tens order 2 stop wire 2|. Thus, .05 will beentered in the machine in the course of the cycle of operation. If,however, the

yoke member 44 is moved to its lower rearward effective position in theearly part of a cycle of operation of the machine as also describedhereinafter, the rear end of the projection 48 and the upper portion ofthe rear end of the projection 49 will engage the projections 53 of thetens and units order "0 stops 26, respectively, and rock both of these"0 stops to releasing position, the upper portion of the rear end of theprojection 52 will move the units order "5 stop wire 2| rearwardly intothe path of the shoulder 24 of the unit order actuator 25, and the rearend of the projection will move the tens order "2" stop wire rearwardlyinto the path of the shoulder 24 of the two order actuator 25 so that"25 will be entered during the machine cycle.

The yoke 35 is rocked on the shaft 39 for movlng the member 44 towardand from the stop wires 2| by downward and upward movements,respectively, of the rearward end of an arm 54 which is secured at itsforward end to the right forward arm 42 of the yoke 35 by a pair ofscrews. A brace member 55, engaging the right hand end of the collar 4|and having in its lower end a semicircular notch tightly embracing theshaft 39, is secured to the arm 54 by a pair of screws. A tension spring56 anchored at its lower end to the shaft 28 and connected at its upperend to a stud 51 in an extension of the brace 55 urges the arm 54downwardly to move the member 44 toward the stop wires 2|. The arm 54has a unilaterally flexible, rearward extension comprising a lever 58pivotally mounted on a stud in the rear end of the arm 54. A tensionspring 59 connected at its lower end to a stud .60 in a lower forwardarm of the lever 58 and at its upper end to a stud 6l in the arm 54urges an upper forward arm of thev lever 58 against the underside of thestud 6I While the machine is at rest between cycles, a stud 62 (Figs. 1and 5), secured in the usual full stroke sector 63 holds the rearwardendv of the lever 58 in an upward position such that the rearward end ofthe arm 54 is lheld at its upward limit where a downwardly andrearwardly extending hook portion 64 of the arm 54 engages against theunderside of the shaft 28 and the upper forward arm of the lever 58 isseparated somewhat from the stud 6|. The spring 59 is of sufficientstrength to dependably lift the rearward end of the arm 54 against thetension of the spring 56 as the rearward end of the lever 58 is raised.

A pair of screws secures a leftwardly extending front portion of a bentarm 65 to the cross-'bar of the yoke 43. A rearwardly extendingportionof the arm 65 carries a stud 66 engaged in a forwardly andrearwardly extending slot in the'for ward end of a lever 61 which ispivoted at its rear end on a stud 68 (Fig. 5) secured in the right sideframe of the machine. The lever 61 may be raised and lowered by controlmechanism described hereinafter to rock the yoke 43 to raise and lowerthe member 44. To-cause the upward and downward movement of the memberV44 to be in a line substantially parallel to the length of its sideportions, a second bent arm 69 has its leftwardly extending portionsecured by a pair of screws to the upper cross-bar of the member 44 andhas, in its rearwardly extending portion, a slot receiving a stud 10secured in the lever 61. The sides of the slots in the rearward end ofthe arm 69 and in the forward end of the lever 61 are so disposed thatthe forward and rearward movement of the member 44 will be parallel tothe forward and rearward movement of the hooked forward ends of the 4stop wires 2|.

Carriage control of operation of fee-entering means A stud 'Il (Fig. 2)secured in the rear end por,- tion of the lever 58 is normally above theforwardly bent end of a projection 'l2 ion an arm '|'3 pivotallysupported at its lower end on a shouldered screw 14 threaded into themachines right hand side frame. A stud 'l5 secured in the arm 13 betweenthe projection 'l2 and the screw 14 extends through a slot in theforward end or a link 13. The stud 15 is normally 'held in the rearwardend of the slot in the link "I6 by a tension spring 1l connected at itsforward end to the stud 'l5 and at its rearward end to a stud secured inthe link T6. At its rear end, the link I6 (Fig. 6) is pivotallyconnected to the upward arm of a bell crank 18 pivotally mounted on ashouldered4 screw 19 secured in the right side frame. The rearward armof `the bell crank 'I8 is connected to the upper end of a tension springwhich is connected at its lower end to a lever 8l also pivotally mountedat its forward end on the screw stud '19. The spring Bil normallymaintains a downward projection .82 on the rearward arm of the bellcrank 18 engaged against the upper side of a stud 83 secured in theVlever 8|.. A tension spring 84 which is connected at its rearward end tothe upper 'arm of the hell crank 'I8 and at its forward end to a.grooved stud, urges the bell crank 18, the lever 8| and, through thelink 16, also the arm 73 counterclockwise to the normal positions lcfFigs. 4 and 6 where a projectien 85 of the lever 8l is stopped againstthe underside of a stud 86 which is secured in the right side frame ofthe machine and serves also to secure a guide piece 8l to said frame. Insuch normal positions of the parts, the forward end of the projection'l2 on the arm 'i3 is under the stud 1|.

hThe rear end portion of thelever 8| (Fig.` 6) is bent leftwardly andhas a depending branch `'carrying a stud 88 (see also Figs. 7 and 8)pivotally supporting a pawl 89 having diverging branches .9 and 9| ofunequal length. The lower portion of the pawl 89 adjacent the pivot stud88 is formed as a cam with a depression between two rises and is engagedby a roller 92 carried on a small lever 93 which is pivoted on a stud 94secured in the end of the lever 8|. A tension spring 95 connectedbetween the lever 8| and a stud 96 in the lever 93 urges the roller 92against the cam portion of the pawl 89 and, so, normally yieldinglyholds the pawl 89 in a middle position as shown in Fig. 6 and such that,with the lever 8| yin its uppermost position, .the ends of both branches9B and 9| of the pawl 89 are in the path of a control stud 91 carried bya bracket 98 (Fig. 5) adjustably secured on a cross rod 99 of thetraveling paper carriage.

The bracket 98 is secured in such a position lengthwise of the rod 99that when the paper carriage moves to a predetermined one of itscolumnar positions, lhereinater referred to as the fee column position,the stud 91 engages in the notched end of lche or the other branch ySillor.9| of the pawl 39, depending upon the direction in which the carriagemoves to enter the fee column position. As the control stud 91 moves, inthe nal portion of the carriage movement, toa position a-bove the pivotstud 38, it rocks the pawl 89 in one direction or the other, dependingupon the direction of movement of the carriage, to the position of Fig.'7 or the position of Fig. 8. When the carriage enters the fee columnposition by movement in the tabulating direction, the stud El engagesthe short arm 90 of the pawl 89 and depresses the rear end of the lever8| a short distance as shown in Fig. 7, but when the carriage enters thesame position by movement in the return direction, the stud 9i acts onthe long arm 9| of the pawl 89 and depresses the rear end of thelever'Si a greater distance as shown in Fig. 8. In either case, suchmovement of the lever 8|, transmitted through the spring 80, bell crank13, link 76 and spring v'Il to the arm 13, is sufficient to withdraw theprojection 12 from under the stud "il, so that as the stud |52 movesdownward in the ensuing machine cycle performed with the carriage in thefee column position, the springs 59 and 53 will cause the lever 58 tofollow the stud 62 until the upper forward arm of the lever S engagesthe underside of the Stud 6|. after which the spring 56 will cause thelever 58 to further follow 'the stud 62 and rock the lever 54 clockwisefrom `its position in Fig. 4 to its position in Fig. 5 where it limitsagainst the upper side of the shaft 28 so that the fee-entering meanswill be 'operated to enter a predetermined fee if such operation of thefee-entering means is not prevented by other control means describedhereinafter. l Carriage control of fee selection The arms 65 and 69 andlever 6l are normally held in their upper positions (Figs. l and 2) byengagement of the stud 1| against the lower end `of a downwardprojection |99 (Fig. 2) of the lever 61. Also, a stud secured in thelever k6`| is above the higher step of the stepped upper .end of the arm13. The rearward movement of ,the arm 13 by the action of the controlstud 91 on the shorter arm 9E) of the pawl 89 as the carriage. entersthe fee column position in the tabulating direction, while sufficient toremove the projection 12 of the arm 13 vfrom vbeneath the stud 1|, isinsufcientto move the higher step of the stepped upper end of the arm 13from beneath the stud |9I. In that circumstance, when the` stud 1| movesdownward in the following cycle of operation of the machine, the higherstep on the upper end of the arm 13, blocking stud |El| on the lever 67,holds the member i4 in an upper position so that one of the sets offee-entering projections carried thereby is positioned to set the 0stops 23 and/or stop wires 2| to enter a fee of one amount. The rearwardmovement of the arm 13. caused by the action of the control stud 91 onthe longer arm 9| of the pawl 89 as the carriage enters the fee columnposition in the return direction is sufcient to move the higher step onthe upper end of the arm i3 rearwardly clear of the stud |0| so thatwhen the stud TI moves downwardly in the ensuing machine cycle, the stud|l| drops to the lower step on the arm 'i3 as the lever 61 is pulleddownward by a tension spring |92 (Fig. 5) connected at its upper end tothe lever 6l and at its lower end to a stud secured in the machine sideframe. The member lll is thereby lowered to position a second set offee-entering projections thereon in position to set the 0 stops and/ orst.p wires for entering the fee of a second predetermined amount. Itwill be noted that such fee-selecting downward movement of the lever 6land member dil is effected during a short initial portion of thedownward movement of the stud 1| and lever 58 and is, therefore,completed before the member M has been moved rearwardly suficiently tocause any fee-entering projections thereon to engage any of the 0 stopsand/or stop wires.

It will, therefore, be apparent that in a cycle of operation of themachine performed with the paper carriage in the fee column position, afee of one predetermined amount will be set up automatically in theamount differential `mechanism if the carriage entered that position bymovement in the tabulating direction, but a fee of another predeterminedamount will be set up in the amount differential mechanism if thecarriage entered that position by movement in the opposite or returndirection. Any fee thus set up in the amount differential mechanism isnormally printed and entered in one or more totalizers in the same wayas would be an amount set up on `the keyboard of the machine.

As no further act or attention of the operator is required to eiectentry of the required predetermined fee following the entry of achargeable item, the machine embodying the invention is advantageously,equipped with means automatically causing the paper carriage to movedirectly to the fee column position each time the machine is operatedwith the carriage in a chargeable item column position, and means tocause a cycle of .operation of the machine for entering the fee to .beperformed automatically when the carriage reaches the fee columnposition. It will be of advantage to consider both the manual andautomatic cycling controls of the machine prior to dealing with thecarriage movement controls.

Manual control Of machine cycling The illustrated machine is driven byan electric motor III) (Fig. 1) through the usual clutch which, togetherwith the usual switch in the power supply circuit of the motor areclosed upon -upward movement of a control link I2 and again vin the link||2 to guide its movement.

.by a tension spring |41.

trol link ||2 ls controllable by three motor bars, the main motor barII3, an upper motor bar ||4 and a lower motor bar ||5. The front andrear stems ||6 and ||1 of the main motor bar I|3 are supported on studsI I8 and I I9 in the opposite ends of two levers and |2| which areplvoted intermediate their ends on the ends of rods |22 and |23supported in the keyboard and have a stud and slot connection |24 witheach other at their adjacent ends. A tension spring |25 is connected atits ends to both of the levers |20 and |2| above the rods |22 and |23. Astud |26 in the stern |21 of the upper motor bar ||4 overlies theforward arm of a bell crank |28 which has a stud and slot connection |29at its forward end with the rear end of the lever |2| and is pivoted ona stud |30 secured in the stem |21 rearwardly of the stud |25. Arearward projection |3I of the stem |32 of the lower motor bar ||5overlies the stud ||8. It will be apparent that the lever I 20 will berocked counterclockwise and that the lever 2| will be rocked clockwiseagainst the tension of the spring |25 by the depression of any of thethree motor bars.

The cycling controls as described thus far are similar to thosedisclosed in the Muller Patent 2,087,542 with the addition of the motorbar designated 1'71 in my prior Patent 2,291,154 but the motor andclutch control link |I2, though somewhat similar to the link 58 of theMuller Patent 2,087,542 has been altered principally in its upper endportions and the manner in which it is controlled by the motor bars andby the automatic repeat control means has been modified. The tensionspring (Figs. 1 and 5) is connected at its lower end to the link ||2 asusual, but its action on the link4 I I2 has been altered. Instead ofhaving its upper end connected to a rearward extension ofthe lever |2|so that it would pull the link I|2 upward only as and while a motor baris depressed as in the prior structure, the upper end of the spring |35is connected to an arm |36 of a xedbrack-et, said arm also carrying avstud |31 (Fig. 5) engaged in the vertical slot The link 2 is thusconstantly urged upward but it is normally held in a lower non-cyclingposition by engagement of a leftwardly bent lug |38 thereon under arightwardly bent lug |39 (Fig. 4) on a cycling control pawl |40 which ispivoted at its vupper end on a cross shafty 14| of the keyboard. Thepawl |40 l5 urged counterclockwise (Fig. 4) yby atension spring |42which normally maintains a front downward arm |43 of the pawl |40`engaged against the front side of a stud I 44. The

stud |44 is secured in the lower end of a latch lever |45 which. ispivoted on a stud |46 secured in the motor bar lever 2| and is urgedclockwise The spring |41 is strong enough to easily overcome the spring|42. Hou ever, engagement of the rightwardly bent end of a latchingprojection |48 of the lever |45 against the rearmost end of the bracketarm |35 holds the lever |45 and stud |44 in such position that the lug|39 is held in the path of the lug |38 to prevent the initiation of amachine cycle. When any motor bar I I3, I I4 or |5 is derressedthe stud|45 and lever |45 are lowered until the projection |48 of the lever |45clears the end of the bracket |38 whereupon the spring |41 pulls thelever |45, the stud |44 and the pawl' I 40 clockwise until 10 start amachine cycle. The levers |20 and |2| are latched in rocked position bythe engagement of the projection |48 under the rear end of the bracketarm |36.

Automatic control of machine cycling The latch lever |45 has a forwardlyand upwardly directed arm |50 extending into the path of the lug |5| onthe usual motor bar release slide |52 which is operated in the usual wayby the upper arm of a lever |53 (Fig. 1) mounted on the end of a shaft|54 journaled in the machine side frames. The three armed lever |55 andsome associated elements of the present machine differ in certainrespects from the comparable elements of prior machines. The rearwardarm of the lever |55 carries one double-stepped pawl |56 in place of theformerly usual two pass-by pawls of differing lengths (pawls 5 and 90 onlever 89 of Muller Patent 2,087,542). Also the lower arm of the lever|55 carries a stud |51 (Fig. 9) by which the rocking of the lever |55 islimited as required for automatic cycling. The usual repeat controlslide and its operating lever, such as designated by the referencenumbers 64 and 66 in the Muller Patent 2,087,542, are replaced by arepeat control lever |58 (Figs. 1 and 9) which is pivotally mounted on aflanged sleeve on a stud |59 secured in the left side of the right sideframe of the machine. A stud |60 secured in the rearward arm of thelever |58 is normally yieldingly held in contact with the upper edge ofthe lever ISI also pivotally mounted on its forward end on the sleeve|59 by spring |62 connected between the rearward arm of the lever |58and a stud secured in the lever I6|. A spring |63 connected between astud in the lever |6| and a stud xed in the side frame of the machinenormally yieldingly holds the lever |6|, and thus also the lever |58, ina counterclockwise (Fig. 9) lnormal position determined by engagement ofthe rear end of the lever |6| against the bent-over end of a xed stop|64. The lever 16|, and thereby also the lever I 68, is rocked clockwise(Fig. 9) to its various out-of-normal control positions by a membercorresponding to the member 86 of Mohr Patent 2,012,387 and similarlyautomatically controlled by control rollers on the paper carriage inaccordance with the columnar positions of the paper carriage.

When the repeat control lever |53 is in its normal position, that is,when it is not positioned by a control roll on the paper carriage, theupwardly extending front end portion of a forward lower arm of the lever|58 is entirely out of the path of the stud |51 and will not prevent thethree armed lever |55 from rocking far enough counterclockwise to causethe higher of the two steps of the pawl |55 to engage the roller |65 onthe lower arm of the lever |53 in the forward stroke of a cycle ofoperation of the machine. Then, in the return stroke of the cycle, thepawl |56 acts on the roller |66 to rock the lever |53 counterclockwisefar enough not only to release depressed amount keys but also to movethe slide |52 and its lug |5| far enough forward to rock the latch lever|45 to disengage its latching projection |48 from the bracket arm |36 topermit the spring |25 to restore the levers |20 and |2| and thedepressed motor bar to normal.

W hen the repeat control lever |58 is positioned by a small control rollon the paper carriage, the upper one |61 of two notches |51 and |58(Fig. 9) in the upwardly extending end of the forward arm of the lever|58 is placed in the path of the stud accuse |51 so that, in theforward'stroke of the machine cycle, the lever |55 is permitted to rockclockwise only far enough to cause the lower step of the pawl |56 tobecome engaged with the roller |66. Consequently, in the return strokeof the cycle, the lever |53 is rocked far enough to release depressedamount keys in the usual way but not far enough to release the latchingprojection |48 from the bracket arm |36 to permit the levers |20 and |2|to return to normal.

When a medium size control roll on the paper carriage positions therepeat lever |58, the lug |69 between the notches |61 and |88 is placedin the path f the stud |51 to so limit the clockwise rocking of thelever |55 in the machine cycle that neither of the steps of the pawl |56can act on the roller |86. Consequently, neither depressed amount keysnor the levers |20 and |2| will be released for return to normal.

A large control roll on the paper carriage will position the lever |58with its lower notch |88 in the path of the stud |51. The notch |68 isof such depth that it does not limit the movement of the lever |55.Consequently the higher sten of the pawl |56 is permitted to act on theroller |88 during the machine cycle to release both the depressed amountkeys and the levers |20 and |2| for return to normal.

In the forward stroke of each machine cycle, a roller stud (Figs. l and5) carried by the full stroke sector 63 engaged a forwardly and upwardlyextending projection |1| of the starting link l2 and depresses that linkto a point below its normal position to permit the link H2 to bere-latched in its normal position. Thus, if the latch lever |45 istripped and the depressed motor bar is released and restored early inthe return stroke of the cycle, the pawl |40 is returned to normal byits spring |42 and places its lug |38 in the path of the lug |38 on thelink I2 to prevent the latter from rising to start a further machinecycle. When the above-described automatic repeat mechanism permits thelatch lever |45 to remain in its latching position, the lug |39 of thepawl |40 is held out of the path of the lug |38 so that a furthermachine cycle will be initiated as soon as the carriage comes to rest inits next columnar position. The means disclosed in the Muller Patent2,012,317 to delay the starting of an automatic machine cycle until thecarriage arrives in a proper columnar position is also employed in thepresent machine except that the latch lever 105 of the Muller patent isreplaced by other parts. The link |12, bell crank |13 and spring |14 ofthe present machine correspond to the parts 104, 102 and 103,respectively, of the Muller Patent 2,012,317. In the present machine,the link |12 is connected at its forward end to the lower end of a lever|15 which is pivoted intermediate its ends on a stud |16 secured in theinner side of the right side frame of the machine. The upper end of thelever |15 carries a stud |11 engaged by and between the lower end of alever |18 and the lower end of a pawl |10 which is pivoted at its upperend on a stud secured in the lever |18. A tension spring |80 connectedat its ends to the lever |18 and the pawl |19, respectively, urges thelever and pawl toward each other and against the opposite sides of thestud |11. lThe lever |18 is pivoted intermediate its ends on the end ofa shaft |8| mounted in the machine frame.

When the paper carriage is released for movement from any columnarposition, the link |12 is pulled rearwardly by the yspring |14 and thelever |18 is thereby rocked clockwise so that a front upward arm |82thereof engages a laterally bent lug on thelower end of the pawl |40 andreturns the latter to its normal position against the tension of thespring |41. This movement of the pawl |40 returns its lug |39 into thepath of the lug |38 but does not restore the latch lever |45 far enoughto disengage its lug |48 from the bracket arm |36 and to release thelevers |20 and |2| for restoration by the spring |25. When the link |12is again moved forwardly in the usual way as the carriage comes to restin a proper columnar position, the lever |18 and its arm |82 arereturned counterclockwise to normal so that the spring |41, actingthrough the lever` |45 and stud |44, can pull the pawl |40 forwardlyagain against the tension of the spring |42 and remove the lug |39 fromabove the lug |38. Thereupon, the spring |35 raises the link ||2 toinitiate the automatic machine cycle.

Disabling automatic cycling means In some kinds of work, a posted amountmay be the total of two or more items rather than the amount of a singleitem. Then, the fee to be entered in the following operation should beequal to the product of the fee per item by the number of chargeableitems included in the posted amount. For example, an amount posted as adeposit to a customers checking account in a bank may represent thetotal of the amounts of a number of deposit items, some or all of whichare subject to service charges. To prevent an automatic machine cycleand an automatic entry of a predetermined single-item fee in the feecolumn after the posting of an amount representing the total of aplurality of items or otherwise requiring the entry of a special fee orthe sum of a plurality of fees, the operator, before depressing a motorbar for entering such an amount, will depress a Repeat Normal key |83(Figs. 1 and 9), the stem |84 of which is pivotally connected at itslower end to the forward end of a lever pivoted at its rear end on thesleeve |59 and overlying a stud |86 carried by a forward branch |81 ofthe upper arm of the repeat control lever 58. The Repeat Normal key stem|84 is notched in the usual manner to permit it to be latched indepressed position by engaging under the edge of the upper plate of thekeyboard. While the Repeat Normal key |83 lis in depressed position, thelever |85, blocking the stud |86, holds the repeat control lever |58 inits normal position so that any motor bar depressed to cause the machineto operate to enter the multiple item or special item amount will bereleased in the machine cycle and an automatic cycle will not occur whenthe carriage arrives in the fee column position. Then the operator maydepress the amount keys necessary to setup the required fee amount andautomatically disable the automatic fee-entering means, as will beexplained in detail hereinafter.

Interlocking and Zatching of upper and lower motor bars The bell crank|28 cooperates in the usual Way with a fixed abutment member |62 to pre-.vent depression of the upper motor' bar ||4 from the yoke 202 of thepresent machine. Instead, a downward arm 203 is secured at its lupperend to the yoke 202 and is pivotally concarriage (corresponding to thecontrol members 250 or 251 of the patent) places the highest step of thesector .2115 immediately under the stud 206 to prevent eiective movementof the bell crank 200. successively larger size control members on thecarriage position the sector 2115 with successively lower ones of itssteps under the stud 206 to permit increasing numbers of increments ofcarriage skip and return selecting movement of the bell crank 200. Thismakes it possible by the placing of control members of selected sizes onthe carriage to act on the control cam arm in appropriate positions ofthe carriage to either variably limit or altogether eliminate iniluenceof the motor bars on the selection of carriage movements `from selectedpositions of the carriage. For example, when the carriage is in aposition where a control roll positions the sector 195 to permit, say,three increments of selecting movement of the bell crank 2110, a controlroll' may also be positioned to act on the cam arm 20| to position thesector 205'to permit no more than four increments of selecting movementof the bell crank 200. Then, no motor bar, when depressed, couldincrease the permitted selecting movement of the bell crank.

200 by more than a single increment. The utility of this eieot willappear from the description of the example of work shown in Fig. 14.

As already -mentioned the means through which the motor bars influencethe position of the sector 195 is similar to the corresponding means ofmy Patent 2,291,154. However, as shown' in Fig. 14, the shoulder 210 onthe link 211 (numbered 188 and 177 in the patent) is reversed inrelation tothe stud 212 on the notched disk 213 (numbered 187 and 184 inthe patent) and a tension spring 214 is connected between the stud '212and an ear on the link 211 so that, upon depression of the lower motorbar 115, the notched disk 213 is yieldingly urged clockwise (Fig. 1)instead of being positively forced clockwise. Also with this reversedarrangement of the shoulder 210 and stud 212, the "spring 215"(corresponding to the spring 174 of the patent) serves to return thedisk. 213 to its normal position so that the spring 189 of the patent isno longer required. Further, the notches in 'the lower edge ofthe disk213 are made with depths suited to the carriage movement controlrequired for the work of Fig. 14. The disk 213, as in the patent, isnormally positioned so as not to act on the stud 216 (200 in the patent)in a machine cycle and, therefore, not tov alter the position of thesector 195 as determined by the control rolls on the carriage.

Upon a hold-down depression of the upper trol. Following a snapdepression of the upper bar 114, the stud 21'1 holds the disk 213 withits notch 222 aligned with the stud '216 so that the sector 195 is movedonly one step clockwise beyond the position in which it is placed by thecarriage control. Upon depression of the lower motor bar 115, a stud 219in the stem of the latter rocks a bell crank 220, pivotally mounted on astud 221 in the machine side frame, so that the link 211 is pulledforwardly and the disk 213 is thereby rocked. A snap depression of thelower motor bar permits the disk 213 to restore partially to align thenotch 224 with the stud 216 so that, when the disk 213 is lowered in themachine cycle, the sector 195 is moved two steps clockwise beyond theposition given it by the carriage control. Upon a hold-down depressionof the lower motor bar 115, the disk 213 is held fully rocked so thatits notch'225 is aligned with the stud 216. The notch 225 is of suchdepth that the stud 216 will not be depressed in the ensuing machinecycle and the sector 195 is not rocked beyond the position in which itis placed by the carriage controls. However, in a machine cycleinitiated by a holddown depression of the lower motor bar 115, a means,described hereinafter in connection with the line-spacing mechanism, isactive to prevent movement of the paper carriage from any columnarposition except the fee column position.

It will be apparent that the two skip control slides and three returncontrol slides 191 shown in Fig. 10 will be suiiicient to provide formovements of the paper carriage from an old balance pick-up position toeither of two chargeable item-entering positions, from either of thelatter two positions to a fee-entering position located between them,from the fee-entering position to either of the chargeable itempositions or to a new balance position, and from the latter positionback to the old balance pick-up position. Only three return movements,two skip tabulating movements and the normal single column tabulatingmovement of the paper carriage are required in such a program inaddition to the disablement of carriage by a holddown of the lower motorbar, as described hereinafter.

- Modified automatic Zine-spacing control In prior Burroughs standardHigh Keyboard machine, the line-spacing mechanism is operated byportions of the carriage return mechanism whenever the latter isoperated to move the carriage in the return direction. Those machinesvalso had mechanism controlled by a Carriage Normal key and frequentlyalso by one `or more motor bars as, for one example, in the machine ofmy prior Patent 2,340,372, to operate the line-spacing mechanism in amachine cycle independently of the carriage return mechanism. Suchkeyboard-controlled linespacing mechanism, when conditioned forlinespacing, also disabled the carriage tabulating mechanism as shown inthe last-mentioned patent.

As previously explained, the fee-entering means of the present inventionis conditioned to enter one fee when the paper carriage enters the feecolumn position from one direction and to enter a' different fee whenthe carriage enters the fee column position from the opposite direction.In both cases, the fee should be printed in the same line of the workform as the item on whichit is based. Thus, in the present machine, itis necessary to suppress line-spacing when the return movement of thepaper carriage is to terminate in the fee column position. II anotherchargeable item is to be entered following the entry of a fee, thatother item must be entered in a new line of the form in order thatanother fee may be entered in the fee column in the same line as suchother item. Thus, when a tabulating movement of the paper carriage fromthe fee column position is to terminate in a chargeable item columnposition, the line-spacing mechanism must be rendered effective withoutdisabling the tabulating mechanism. However, the line-spacing mechanismmust not operate in a machine cycle in which the carriage tabulates tothe fee column position, and it must operate in machine cycles in whichthe carriage moves from the fee column position in the return direction.If the fee-entering mechanism is to operate automatically in a machinecycle initiated automatically upon arrival of the paper carriage in thefee column position as previously explained, then the above-mentionedrequired controls of the line-spacing mechanism must also be eiectedautomatically.

The construction and operation of the carriage return mechanism are asdisclosed in the Rinsche Patent 1,580,534 as modified by my prior Patent2,291,154. It comprises a xed housing 223 (Figs. l and 13) in which is agear 233 (Fig. 10) adapted to be driven from the machine drive motorthrough a clutch and meshing with a rack 23| mounted on the papercarriage for a limited sliding movement relative to the carriage. Themounting at one end of the rack 23| is shown in Fig. 13 Where a bracket232 secured to the underside of the rack 23| carries a headed stub 233passing through a horizontally elongated slot 234 in a plate 235 rigidlysecured to the paper carriage frame. at one end to a stud in the rack23| and at the other end to a stud in the plate 235, normally holds therack 23| at the rightward limit, as viewed from the rear of the machineas in Fig. 13, of its travel relative to the carriage. When thecarriage-return clutch is engaged, the rack normally is moved to theopposite end of its travel relative to the carriage, stretching thespring 235, before it picks up the carriage and moves the latter in thereturn direction. Upon subsequent disengagement of the carriage-returnclutch, the spring 236 returns the rack 23| to its normal position onthe carriage.

A line-spacing pawl 231 (Fig. 13) is pivoted on the upward arm of acrank 238 pivoted on a stud 239 secured in the carriage frame. Arearward arm of the crank 238 is connected through a link 240 to theleftward arm of a crank 24| pivoted on a stud 242 secured in thecarriage frame. A downward arm of the crank 24| carries a stud 243positioned on the leftward side of a block 244 secured to the undersideof the rack 23|.

When the rack 23| is moved leftward (Fig. 13) `relative to the carriageupon engagement of the carriage-return clutch, the cranks 24! and 238are rocked to engage the line-spacing pawl 231 with the line-spacingratchet wheel 245 and advanoe the latter and when the return clutch isagain disengaged and the rack 23| is moved rightwardly to its normalposition relative tothe carriage by the spring 235 at the end of thecarriagereturn movement, the line-space pawl' 231yand cranks 238 and 24|are returned to normal by a tension spring 245 connected between a studin the crank 23.8 .and a Stud (not shown) secured A tension spring 23|:`connected in the carriage frame.

' tle to the right of the nose of a pawl 248.

hollow hub 249 secured in the pawl 243 intermediate the ends of thelatter is rotatably supported in the plate 235 and has an arm 250secured to its forward end, as by means of a screw. A stud 25| securedin the leftward (Fig. 13) end of the arm 253 underlies the leftward armof the pawl 248. A tension spring 252 connected at its ends to studs inthe arm 250 and in the plate 235 normally maintains the stud 25| againstthe leftward arm of the pawl 248 and yieldingly holds the latter at theclockwise limit of its movement in contact with a limit stud 253 securedin the plate 235 and with the rightward arm of the pawl out of the pathof the lshoulder 241. A stud 254 is secured in and projects rearwardlyfrom a pass-by pawl 255 pivotally mounted on a stud 255` secured in thedepending end of the leftward arm of the pawl 248. A tension spring 251connected between the stud 254. and a lug on the pawl 248 urges the pawl255 counterclockwise and normally holds the stud 254 engaged against thedepending portion of the pawl 248. A cam plate 258 has, at one end,guide flanges 259 turned toward each other behind a small plate 260 inwhich is threaded a clamping screw 25| whereby the cam plate 258 ismounted on and may be secured in any adjusted position lengthwise of arail 262 secured to the carriage return drive housing 229. The cam 253is adjusted to A and secured in such position that it is above the stud254 while the carriage is in a chargeable vitem column position to whichthe carriage may move in the tabulating direction from or through thefee column position.

In the example of work shown in Fig. 14 and described hereinafter, theamounts of checks are entered in the chargeable item column at the leftof the Fees column and the amount of deposits are entered in thechargeable item column at the right of the Fees column. It will beconvenient to refer to the chargeable item columns at the left and atthe right of the Fees column as the Checks column and the Depositscolumn, respectively, hereinafter, though y it should be remembered thatother kinds of chargeable items can be entered in thosecolumns,additional chargeable item columns may be provided, and machinesembodying the invention may be employed for various kinds of work.

When the carriage enters the Deposits, co1- umn position by movementinthe tabulating direction (rightward in Fig. 13), the stud 254encounters a downwardly inclined edge 263 of the cam plate 258 and iscamrned downwardly under the plate 258. The pawl 248 is thereby rockedto place its nose behind the shoulder 241 where it is held by the plate258 while the carriage remains in the Deposits column position. Then, inthe course of an operation of the machine to enter an amount in theDeposits column, when the carriage return mechanism is set in operationto return the carriage to the Fees column position, the shoulder 241 ofthe bracket 232 engages the nose of the pawl 248 ywhich prevents therack23| and block 244 from moving relatively to the carriage suiciently tooperate the linespacingpawl 231to line-space the platen. Consequently,when the machine operatesafter the carriage comes to rest in the Feescolumn position, the fee is printed inthe same line as the vamount ofthe chargeable item printed in the Deposits column. When the carriagereturn mechanism is set into operation while the paper carriage is inany columnar position where there is no cam plate 258 above the stud254, the nose of the pawl 248 is out of the path of the shoulder '241,and the rack 23i will be moved relatively to the carriage to operate thebell crank 24| to linespace the platen at the beginning of each such'operation of the carriage return mechanism.

In previously known Burroughs machines, linespacng may also be effectedin selected machine cycles by operation of a second line-spacing pawl210 (Fig. 13). The pawl 210 is pivoted on a stud 21| in the rearward endof an arm 212 pivotally supported at its forward end on the platen shaft213. A link 211i is pivotally connected at its upper end to the stud 21|and at its lower end to a pin 215 which is carried by and adjustable todilerent .positions in a crank arm 216 secured on a shaft 211 journaledin the carriage frame. A bail rod 218 is secured, by a plurality of armslke the arm. 219, to the shaft 211 and passes through slots betweenpairs of rearward projections 28E! on a slide 28| vertically slidablymounted on the back plate 282 (Fig. l) of the machine. Adjacent thelower projections 28B are two rearward projections 283 of the usualtabulating slide 284 which 'is moved downward in the forward stroke andreturned upwardly in the return stroke of each cycle of operation of themachine. The slide 28| and bail rod 218 are normally unaiected by thereciprocations of the tabulating slide 284.

A coupling pawl 285 pivotally mounted on a stud in the tabulating `slide284 has a projection 286 adapted to enter a notch 281 in thelinespa-cing slide 28| to couple the latter to the tabulating slide. Thecoupling pawl 285 is normally yieldingly held in uncoupled position by atension spring 288 but is movable to coupling position by a controlmember 289. In a machine cycle initiated while the pawl 285 couples theslide 28| to the slide 284, the slide 28| is pulled downward with theslide 284 by the pawl 285 in the forward stroke of the cycle. The bailrod 218, shaft 211, and crank arm 216 are thereby rocked to raise thelink 211i, the rear end of the arm 212, and the line-spacing pawl 218which is yieldingly urged against the ratchet wheel 245 by a tensionspring, part of which is shown at 298. In the return stroke of thecycle, the projections 283 of the upwardly returning slide 284 raise thebail rod 218, thus pulling the link 2111 and line-spacing pawl 210downwardly to normal position so that the ratchet 225 and the platen arerotated to line-space the papers on the latter. It will be noted thatbecause of the projections '283, it is really immaterial whether or notthe pawl 285 remains in coupling position during the return stroke of amachine cycle.

The control member 28e is like the member |68 of my prior Patent2,340,372 and is operated through connections (not shown) like theconnections 548 to 521, inclusive, of that patent -by a slide 29| (Fig,fl) corresponding to the slide 531 oi the patent and vertically slidablymounted on the stud 19 and on a stud 282 also secured in the machineside frame. It should be noted that one of such connecting members,namely the link numbered 583 in the patent, has a projection (545 in thepatent) which prevents carriage tabulation by holding the tabulatingpawl (52 in the patent) in an ineffective position while anotherprojection (546 inthe patent) of said link holds;

the control member 289 (168 in the patent) in position to couple thepawl 285 to the tabulating slide 284 to cause line-spacing. Also as inmy last-mentioned prior patent, the slide 29| carries a roller 293 whicha tension spring 296i, connected at its lower end to the slide 29| andat its upper end to a stud in the machine side frame,

y the sector against the roller 293, thereby perbell crank 18.

mitting the spring 294 normally to hold the slide .29| in its uppermostposition. As in rny last- Imentioned prior patent, the coupling pawl 285is vin uncoupled position while the slide 22| is in its normal upperposition but is moved to coupling position by downward movement of theslide 29|.

A link 2591l is pivotally connected at its forward `end to astud in thefull stroke sector 53. A stud 298 secured in the rearward end of thelink 291 projects into an irregular slot 228 which is formed in the camsector 295 and has a normally substantially vertically extending portionjoining at its upper end with the rear end of a normally generallyhorizontal portion. The spring 298 and roller 293 normally maintain thevertical portion of the slot 299 aligned with the stud 298 while themachine is at rest and a tension spring 388 .normally maintains the stud298 in alignment with the horizontal portion of the slot 299 so thatmovement of the link 291 by the full-stroke 'sector in a machine cyclemerely causes the stud to reciprocate in the horizontal portion of theslot 299 without rocking the cam sector 285 to depress theroller 223 andslide 25| to move the coupling pawl 285 to couple the line-space slide28| to the tabulating slide 288.

Prior Burroughs High Keyboard machines, `suc-h as those disclosed in myprior Patent 2,340,372, in the Muller Patent 2,812,317 and in otherprior patents, have had various means operated or controlled by one oranother of the motor bars to depress the stud 282 into the verticalportion of the slot 229 to cause the cam 285 to be operated duringselected machine cycles to depress the slide 29| and thereby move thepawl 285 to coupling position to cause a line-spacing operation of theline-spacing pawl 21e and move the tabulating paw'i to ineffectiveposition and. thus suppress carriage tabulation. The present machine isprovided with a means operable by the lower motor bar H5 to depress thestud 22ste cause operation of the line-spacing pawl 218 and with a meanscontrolled by the paper carriage through the bell cran: 12 to lift thestud 2 98out of the vertical portion of the slot 2&8 too late in themachine cycle to interfere with line-spacing but early enough to preventsuppression of carriage tabulation.

The bell crank 222 has a downward third arm rpivotally connected to theforward end of a link 3H) `having a rearward cam portion guided betweenthe cam sector 225i and a lever 3H pivot- The rear end of the link SI2rests on the stud 288. rThe lever 3H carries a stud 3|3 projecting intoa slot in the upper end-- of a link 3M which, at its lower end, ispivotally connected 'to a stud in the rearward arm of the A tensionspring M5 connected between'a stud `on the link 3M and the stud 313 i.

